C# Discussion Boards - CodeProject

Re: Using HLSL with Managed DirectX

3-Sep-04 8:22

Nick's solution works for Managed DirectX 9. How you do it in your 3D engine is implementation-specific. I recommend you use Managed DirectX 9 for your application. Yes, this requires DirectX but it has much better support and the Managed library is a ground-up development, not just a simple wrapper around the typelibs for DX.

A good book to learn about MDX9 is Managed DirectX 9 Kick Start : Graphics and Game Programming[^].

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WillemM3-Sep-04 8:41

WillemM

3-Sep-04 8:41

I did build the engine from managed directX. This is because it was the easiest way to build it. Thanks for the tip of the book.

I got the effects to work now Big Grin | :-D

"Every rule in a world of bits and bytes can be bend or eventually be broken"

multiple document interface-problem explanation

gijoebijoe3-Sep-04 7:03

gijoebijoe

3-Sep-04 7:03

Hello,

First of all ,thank you for your concern.

My program which im going to show to my superiors, consists of a main form which acts as an image viewer,where i can open an image in one picture box and zoom into the image.The zoomed image appears in a second picture box.Now, in the menu there is a "rotate " menu item which opens a child form which asks for the degree of required rotation.

In my program, when the child form opens , it stays in the background of the main form.Any controls (picture boxes etc.)of the main form always stay in the foreground.

how can i solve this problem

Thank you

thank you

Re: multiple document interface-problem explanation

Heath Stewart3-Sep-04 7:18

Re: multiple document interface-problem explanation

3-Sep-04 7:18

You mean when you call Form.Show or Form.ShowDialog (don't forget to call Dispose in the latter case when done with the Form), it goes to the background? If that's the case, more explanation about what your application is doing at the time is necessary.

If you want the child form to always be in the foreground even when the main form is clicked, once you instantiate the child Form set it's Owner to the main Form, or call AddOwnedForm on the main Form passing the child Form as the parameter. Use Form.Show instead of Form.ShowDialog (creates a modal dialog in the latter case). This will create a modeless Form that is owned and subsequently closed by the main form.

See the .NET Framework SDK documentation for the Form.Owner property and Form.AddOwnedForm method for more information.

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EssOEss4-Sep-04 20:40

EssOEss

4-Sep-04 20:40

You're not supposed to have controls or anything else like that in an MDI main window. You have to put everything into plain child windows or MDI child windows.

padding a number's string representation

matthias s.3-Sep-04 6:26

matthias s.

3-Sep-04 6:26

Hi,

I'm pretty sure this is as easy as it gets, but I couldn't find anything in the documentation.

I'd like to change the string representation of an int so, that the numbers get padded with 0's up to a certain amount of characters: For example I'd like to pad up to 4 characters, then a 17 should look like this '0017'.

Any help is greatly appreceated.

Matthias

If eell I ,nust draw to your atenttion to het fakt that I can splel perfrectly well - i;ts my typeying that sukcs.
(Lounge/David Wulff)

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Heath Stewart3-Sep-04 6:36

3-Sep-04 6:36

If you take a look at Numeric Format Strings[^] in the .NET Framework SDK documentation, you'll see the following will work:

using System;
 
class Test
{
  static void Main(string[] args)
  {
    int i = 17;
    Console.WriteLine(i.ToString("0000"));
 
    // OR
    //
    Console.WriteLine("{0:0000}", i); // Same as String.Format
  }
}

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Not Active3-Sep-04 6:37

Not Active

3-Sep-04 6:37

Try looking up Format Specifications. What you want is something like "%04d"

Heath Stewart3-Sep-04 6:38

3-Sep-04 6:38

This is C# Mark, not C/C++. Smile | :)

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How would you attack this?

Not Active3-Sep-04 7:01

Not Active

3-Sep-04 7:01

Right, my mistake. Damn all these languages.

Adam °Wimsatt3-Sep-04 6:06

Adam °Wimsatt

3-Sep-04 6:06

I have a collection object that contains hierarchical data... Here's how it looks:

ID,  Name, ParentID, Description
=================================
1 ,   Bob,     NULL, I'm a parent
2 ,   Sam,        3, I'm a child
3 ,   Tom,     NULL, I'm a parent
4 ,  Jill,        1, I'm a child
5 ,   Kid,        2, I'm a grandchild

I need to get these items into a tree stucture... Notice that the list is unordered. My coder sensors sense a recursive routine, but I'm wondering if there is some other solution hanging out there I haven't thought of.

Thanks,
Adam

Re: How would you attack this?

Heath Stewart3-Sep-04 6:43

Re: How would you attack this?

3-Sep-04 6:43

I've developed a system like this that is actually quite fast, and have posted the solution here before. One thing to add, though, use TreeView.BeginUpdate and TreeView.EndUpdate before and after you build the tree, respectively.

See http://www.codeproject.com/script/comments/forums.asp?msg=911562&forumid=1649#xx911562xx[^] for details (which includes a link to another thread where I've discussed this before).

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Microsoft

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Marc Clifton3-Sep-04 9:51

Marc Clifton

3-Sep-04 9:51

Adam Wimsatt wrote:
My coder sensors sense a recursive routine, but I'm wondering if there is some other solution hanging out there I haven't thought of.

I don't see this as recursive. Rather, I would walk the list in two passes.

Pass 1: Create nodes
Pass 2: wire-up child/parent relationships

I'd probably maintain a Hashtable keyed with the ID to easily locate the parent node.

Once the tree structure is built, you can put it into a view, like a TreeList. This kind of stuff is perfect for an MVC pattern--the Controller can manage getting the data out of the database, the Model can manage the internal tree management, and the View can handle constructing a TreeList or other visual representation.

Well, that's my 2c.

Marc

MyXaml
Advanced Unit Testing

Setting a stylesheet in AxWebBrowser control

cheesepirate3-Sep-04 3:48

cheesepirate

3-Sep-04 3:48

Hi
I'm using a WebBrowser object in my form to display the results of a Dataset. All is good in formatting the html into a table, but I'm seeming stuck with the standard stylesheet - Times Font and all the other defaults.

How can a set a stylesheet when I set the HTML data? Saving the report to a temporary file and navigating to it causes the control to use the stylesheet defined in the file, but I don't want to do it that way, I want to set the text and set the stylesheet all with my program.

Cheers

Dave

Nick Parker3-Sep-04 4:51

Nick Parker

3-Sep-04 4:51

Check out the following: IHTMLDocument2::styleSheets[^], you will need to wrap MSHTML however, this is discussed here[^]

- Nick Parker
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cheesepirate3-Sep-04 5:17

cheesepirate

3-Sep-04 5:17

As far as I can tell that returns a read-only collection of stylesheet - if the page had a stylesheet to begin with I could possibly alter it, but not add to them

I did manage a sort-of work around using the createStyleSheet method of msthml.HTMLDocumentClass. It does mean having to have the stylesheet in a file rather than generate it, but it does what I need it to.

Heath Stewart3-Sep-04 6:46

3-Sep-04 6:46

Just to let you know, Microsoft.mshtml.dll comes with VS.NET, IIRC, which is far better to use than creating your own since it's the PIA (primary interop assembly) produced by Microsoft. I think it also comes with Office, but I'm honestly not sure.

Just letting you know. Smile | :)

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How to create a dynamic component to include multiple text sections and buttons?

Nick Parker3-Sep-04 7:07

Nick Parker

3-Sep-04 7:07

Thanks, I will keep that in mind the next time a similar question is asked here. Wink | ;)

- Nick Parker
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SmtpMail timeout

hkulten3-Sep-04 3:25

hkulten

3-Sep-04 3:25

Hi all!

Here is my problem:

I am developing a Windows service written in C#. The work of this service is to send an alert by mail when the total memory of the OS is too high for example. I'm using the System.Web.Mail namespace to send a mail and everything is ok. I put this piece of code in a thread to make my application more reliable, like that:

' the code for sending mail is in the ThreadLoop method of the Job class
Thread jobThread = new Thread(new ThreadStart(current_job.ThreadLoop));
jobThread.Start();

' wait until the job is done or the timeout is reached
bool noTimeout = current_job.Mre.WaitOne(30*1000, false);

' stop the thread...
jobThread.Abort();

Ok. My problem occured when there is a big file attached to the mail, and the timeout is reached. The method Abort() does not quit the thread until the entire mail is sent...
And I cannot add a timeout to the System.Web.Mail.SmtpMail.Send method, then I am stuck.
Confused | :confused:

Is there a way to force the termination of a thread?

Thanks.

Wink | ;)

Liquidian3-Sep-04 3:15

Liquidian

3-Sep-04 3:15

I need a component that I can drag around the form at run time. The component must have multiple text sections. And the user should be allowed to drag and drop buttons anywhere on the component. The component should be able to be stored, in other words if the program is closed and re-opened the component should be rebuilt with the same text and buttons in the same place

Basically this is what I need:

Text text text text text text text text text text text text text text
text text text text text text text text text text text text
text text text text text text
text text text text text text text text text
text text text text text text
text text text text text text text text text text text text

<<Button1>>

text text text text text text text text text text text text
text text text text text text
text text text text text text text text text

<<Button1>>

Re: How to create a dynamic component to include multiple text sections and buttons?

Heath Stewart3-Sep-04 6:53